public class Main {

    public static void main(String[] args) {
        Scanner in = new Scanner();
        int N = in.nextInt;
        int[]arr = new int[N];
        int k1 = 0;
        int k2 = 0;
        for (int i = 0; i < N ; i ++){
            if (a[i] mod a[1] = 0){
                k1 = k + 1;
            }
            if (a[i] mod a[N] = 0){
                k2 = k + 1;
            }
        }
        if (k1 > k2){
            System.out.println(1);
        }
        if (k1 < k2) {
            System.out.println(0);
        }
            if (k1 = k2){
                System.out.println(-1);
    }
}